GTLP16T1655 Datasheet, PDF (11/14 Pages) Fairchild Semiconductor – 16-Bit LVTTL/GTLP Universal Bus Transceiver

Extended Electrical Characteristics (GTL)
Over recommended ranges of supply voltage and operating free-air temperature V_REF = 0.8V (unless otherwise noted).
C_L = 30 pF for B Port and C_L = 50 pF for A Port.
Symbol
From
(Input)
To
(Output)
Min
Typ
(Note 19)
Max
Unit
t_OSLH (Note 20)
A
B
0.4
1.0
ns
t_OSHL (Note 20)
0.4
1.0
ns
t_PV(HL) (Note 21) (Note 22)
A
B
1.5
ns
t_OSLH (Note 20)
CLKAB
B
0.3
0.9
ns
t_OSHL (Note 20)
0.3
0.6
ns
t_PV(HL) (Note 21) (Note 22)
CLKAB
B
1.2
ns
t_OSLH (Note 20)
B
A
0.3
1.0
ns
t_OSHL (Note 20)
0.3
1.0
ns
t_OST (Note 20)
B
A
0.6
1.5
ns
t_PV (Note 21)
B
A
1.6
ns
t_OSLH (Note 20)
CLKAB
A
0.3
0.6
ns
t_OSHL (Note 20)
0.3
0.6
ns
t_OST (Note 20)
CLKAB
A
0.5
1.0
ns
t_PV (Note 21)
CLKAB
A
1.1
ns
Note 19: All typical values are at V_CC = 3.3V, and T_A = 25°C.
Note 20: t_OSHL/t_OSLH and t_OST—Output to output skew is defined as the absolute value of the difference between the actual propagation delay for all outputs
within the same packaged device. The specifications are given for specific worst case V_CC and temperature and apply to any outputs switching in the same
direction either HIGH-to-LOW (t_OSHL) or LOW-to-HIGH (t_OSLH) or in opposite directions both HL and LH (t_OST). This parameter is guaranteed by design and
statistical process distribution. Actual skew values between the GTL outputs could vary on the backplane due to the loading and impedance seen by the
device.
Note 21: t_PV—Part to part skew is defined as the absolute value of the difference between the actual propagation delay for all outputs from device to device.
The parameter is specified for a specific worst case V_CC and temperature. This parameter is guaranteed by design and statistical process distribution. Actual
skew values between the GTL outputs could vary on the backplane due to the loading and impedance seen by the device.
Note 22: Due to the open drain structure on GTL outputs, t_OST and t_PV(LH) in the A-to-B direction are not specified. Skew on these paths is dependent on the
V_TT and R_T values on the backplane.
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